Sophia Delgado
The lunula (pl.: lunulae; from Latin 'little moon') is the crescent-shaped whitish area at the base of a fingernail or toenail. The lunula is located at the end of the nail that is closest to the skin of the finger, but it still lies under the nail. Although everyone has a nail matrix, not everyone will see or have a lunula on each nail. The lunula can be hidden under the skin or be hard to see due to skin colour and other factors. However, an absent lunula can also be a sign of a vitamin deficiency, vitiligo, kidney failure, or another health condition.
| Characteristics | Values |
|---|---|
| Shape | Crescent-shaped |
| Colour | Whitish |
| Location | At the base of the nail, just above the cuticle |
| Appearance | Not everyone has a visible lunula on each nail |
| Health | An absent lunula may be a sign of a vitamin deficiency, vitiligo, kidney failure, or another health condition |
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What You'll Learn
- The lunula is the crescent-shaped, whitish area at the base of a fingernail or toenail
- Not everyone has a visible lunula on each nail
- An absent lunula could be a sign of a vitamin deficiency, kidney failure or another health condition
- The lunula is part of the nail matrix, which produces the cells that become the hardened nail plate
- The lunula appears by week 14 of gestation
The lunula is the crescent-shaped, whitish area at the base of a fingernail or toenail
The lunula is not always visible, and this may be due to skin colour or other factors. However, an absent lunula can also be a sign of a health condition, such as a vitamin deficiency, vitiligo, or kidney failure. In humans, the lunula appears by week 14 of gestation, and it has a primary structural role in defining the free edge of the distal nail plate (the part of the nail that grows outward).
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Not everyone has a visible lunula on each nail
The lunula is the crescent-shaped whitish area at the base of a fingernail or toenail. It is also known as a half-moon and is part of the nail matrix. The nail matrix is the tissue just beneath the nail that contains nerves, lymph and blood vessels, and produces the cells that become the hardened nail plate.
Although everyone has a nail matrix, not everyone will see or have a lunula on each nail. This may be because the lunula is hidden under the skin, or because skin colour and other factors make the lunula more or less visible. In some cases, an absent lunula can be a sign of a vitamin deficiency, vitiligo, kidney failure, or another health condition. However, not being able to see a lunula on the nails doesn't always mean that something is wrong with a person's health.
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An absent lunula could be a sign of a vitamin deficiency, kidney failure or another health condition
The lunula is the crescent-shaped whitish area at the base of a fingernail or toenail. It is also known as a half-moon and is part of the nail matrix. The nail matrix is the tissue just beneath the nail that contains nerves, lymph and blood vessels. It also produces the cells that become the hardened nail plate.
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The lunula is part of the nail matrix, which produces the cells that become the hardened nail plate
The lunula is the crescent-shaped, whitish area at the base of a fingernail or toenail. It is also known as a half-moon and is Latin for 'little moon'. The lunula is part of the nail matrix, which is the tissue just beneath the nail. The matrix contains nerves, lymph and blood vessels, and it produces the cells that become the hardened nail plate. The lunula is the visible portion of the matrix, although it may be hard to see. Skin colour and other factors can make the lunula more or less visible.
The lunula appears by week 14 of gestation and has a primary structural role in defining the free edge of the distal nail plate (the part of the nail that grows outward). It is located at the end of the nail that is closest to the skin of the finger, but it still lies under the nail. It is not actually white but only appears so when seen through the nail. The lunula is a very delicate part of the nail structure.
Not everyone will see or have a lunula on each nail, and those who do may notice that they vary in appearance across each nail. Sometimes, the lunula may only be visible on the thumbs or not at all. An absent lunula can be a sign of a vitamin deficiency, vitiligo, kidney failure or another health condition. However, an absent lunula does not always indicate a health problem.
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The lunula appears by week 14 of gestation
The lunula is the crescent-shaped whitish area at the base of a fingernail or toenail. The word comes from the Latin for 'little moon'. In humans, the lunula appears by week 14 of gestation and has a primary structural role in defining the free edge of the distal nail plate (the part of the nail that grows outward). The lunula is located at the end of the nail that is closest to the skin of the finger, but it still lies under the nail. It is not actually white but only appears so when it is seen through the nail.
The lunula is part of the nail matrix, which refers to the tissue just beneath the nail. The matrix contains nerves, lymph, and blood vessels, and produces the cells that become the hardened nail plate. Although everyone has a nail matrix, not everyone will see or have a lunula on each nail. Those who do have a lunula may notice that they vary in appearance across each nail. For example, sometimes you may only be able to see a lunula on your thumbs or not at all. This may be because the lunula is hidden under your skin.
An absent lunula can be a sign of a vitamin deficiency, vitiligo, kidney failure, or another health condition. However, an absent lunula does not always mean that something is wrong with your health. Skin colour and other factors may make the lunula more or less visible.
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Frequently asked questions
A lunula is the crescent-shaped, whitish area at the base of a fingernail or toenail. It is also known as a half-moon.
Not everyone has a visible lunula. Sometimes it is hidden under the skin. However, an absent lunula can be a sign of a vitamin deficiency, vitiligo, kidney failure or another health condition.
The lunula is part of the nail matrix, which is the tissue just beneath the nail. The matrix produces the cells that become the hardened nail plate.
The lunula appears by week 14 of gestation.
